Read receipts turning off for a contact spontaneously?
I have read receipts on my iPhone 6 turned off in the main settings. I have them enabled for one contact. Today marks the fourth time that I get a message from that contact asking why my read receipts have been turned off. When I go into the contact info, sure enough, the "send read receipts" is turned off, and I have to turn it back on.
I DID NOT turn them off. Any idea why this would happen?
iPhone 6, iOS 10.3.1